Mattress-spring.



R. G. MARQUARDT.

MATTRESS SPRING.

APPLICATION FILED Auml. ma.

Patented Sept. 10, 1918.

mnu uumum wf 0o LA numun (L A "A7 L1A T INK l m mm ImmL nnlnunnmn REINHOLD G. MARQUARDT, on-MI/LWAUKEE, WISCONSIN. Y

Y f. MATTRESS-SEEING."

Specification of Letters Patent. ,Patented Sept, 10,1918,

Application led Augustin, 11916. Serial No. 114,312.

To all whom t may concern.'

Be it known that I, REINHOLD G. MAR- QUARDT, a citizen of the United States, residing at the city of Milwaukee, county of Milwaukee, and State of Wisconsin, have invented new and useful Improvements in Mattress-Springs, of which the following is a specication.

My invention relates to improvements in mattress springs, and the same is explained by reference to the accompanying drawing, in which Figure 1 represents a plan view of a portion of a mattress spring, Fig. 2 represents a side view of a portion of a longitudinal series of links in connection with a portion of transversely arranged spirally wound wires, and Fig. 3 represents a plan view of one link and aV portion of two other longitudinally arranged links, in connection with spirally wound wires by which the longitudinal series of links are connected together.

Like parts are identiiied by the same reference numerals throughout the several views.

1 represents one of the links, several of which, when connected together form the longitudinal series of links, a plurality ofA which series are shown in Fig. 1. 2 is a transversely arranged spirally wound wire, a plurality of said wires being connected with said longitudinal series of links at short intervals between the end members of the mattress frame. 3 represents one of the end members of the mattress frame, and 4:, 4 represents the side members of such frame. The respective ends of the several series of links 1 are connected to the end members 3 of the mattress frame by spiral springs 5, the springs at one end of the mattress frame being shown in Fig. 1. It will be understood that the opposite Vend of said mattress frame (not shown) is preferably provided with a similar series of spiral springs 5 for connecting the opposlte ends of the series of links 1 with the opposite end member of the frame. The spiral. springs 5 are each provided at one end with hooks 6, which are greferably` inserted through the apertures of the frame member 3, and the opposite ends of said spiral springs 1 are connected vtogether by the transversely arranged spirally wound wires 2, said spirally wound wires 2 being interlocked with said longitudinally arranged series of links as shown in Fig. 3, and such wires are thus interlocked together by revolving said spirally woundA wires 2 simultaneously as they are extended across the mattress spring, whereby the coils of wire 9 are intertwined with the opposing ends of each pair of links, as most clearly shown in Fig. 3.

It will be understood, that as the spirally coiled wire 2 is revolved, the end 10 of such wirel is caused rto pass between the wires 11, 11 of one link and the members 12, 12 of the next adjacent link as shown in said Fig. 3, when by continuing the revoluble movement of said spirally wound wire, the end 10 thereof is caused in like manner to become vintertwined with the next adjacent links of the several series throughout the mattress spring. Thus each spirally wound wire between the respective ends of the mattress frame is in like manner connected with the several longitudinal series of links.

Attention is directed to the fact that each link is oval in form, the opposite sides curving away from each other in the middle of the link and converging at both ends,where by such links, when submitted to excessive pressure, are caused t0 straighten out and the respective sides are thereby caused to approach each other and thus increase the length of the series, whereby the mattress is made much more elastic than it would otherwise be if the sides of such links were made straight.

Having thus described my invention,

what I claim as new, and desire to secure'by GTI bend at one end, and u pair of hooks at its tract as they are subjected to a greater or 10 opposite end, the respective side members less pressure.

of each link being curved outwardly from In Jcest-iinony whereof I affix my signature its extreme ends toward its center, a` pluin the presence of two witnesses.

rulity of trun'sversely .arranged coiled wires, REINHOLD G. MARQUARDT.

each coiled wire being interwound with said outwardly curved links nl; their several. lVitnesscs:

points of Contact, said links being,- adapted JAS. B. ERWIN,

by their curved shape to expand and con- FREDERICK W. NoLTn.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

